Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Se a grade for 13, quem está dirigindo?
 ###Tabelas: CREATE TABLE 1994_draft_picks (1994_draft_picks_id AUTO_INCREMENT PRIMARY KEY, Round INT, Overall INT, Player VARCHAR, Nationality VARCHAR, Club team VARCHAR) CREATE TABLE girls_league_championships (girls_league_championships_id AUTO_INCREMENT PRIMARY KEY, School Year VARCHAR, Volleyball VARCHAR, Cross Country VARCHAR, Soccer VARCHAR, Tennis VARCHAR, Golf VARCHAR, Basketball VARCHAR, Swimming VARCHAR, Softball VARCHAR, Track & Field VARCHAR) CREATE TABLE chief_wilson's_36_triples (chief_wilson's_36_triples_id AUTO_INCREMENT PRIMARY KEY, Triple INT, Game INT, Date VARCHAR, Inning VARCHAR, Location VARCHAR, Opposing Pitcher VARCHAR, Team VARCHAR) CREATE TABLE classification (classification_id AUTO_INCREMENT PRIMARY KEY, Driver VARCHAR, Constructor VARCHAR, Laps INT, Time/Retired VARCHAR, Grid INT) CREATE TABLE current_line_of_headphones (current_line_of_headphones_id AUTO_INCREMENT PRIMARY KEY, Headphone Model VARCHAR, Headphone Class VARCHAR, Driver-matched dB VARCHAR, Construction VARCHAR, Earpads VARCHAR, Termination VARCHAR, US MSRP VARCHAR)  
SELECT Driver FROM classification WHERE Grid = 13